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1/4-20 Perma-Thread Insert STI Tap

1/4-20 Perma-Thread Insert STI Tap

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Item Number: 822505
Package Weight: 0.1 lbs
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Product Details

  • Perma-Thread Inserts are precision formed coils of extremely hard stainless steel (18-8) diamond shaped wire. When installed into a Perma-Thread tapped hole, the insert provides permanent conventional screw-threads.
  • The insert has a driving "tang" for installation which is notched for easy removal.
  • Perma-Thread Inserts are larger in diameter before installation than the tapped hole. During installation the inserting tool tightens the insert which reduces the diameter of the leading coil so it can enter the tapped hole. After installation, each high tensile stainless steel coil expands outward against the tapped hole to permanently anchor the insert.
  • May be used on all military trucks, aircraft and other vehicles covered by MS 21208 and MS 21209.
  • Meets NAS 1222 specifications for helically coiled inserts.
Product Documents
P65 Warning

Product Specification

Alt Hyphen Number:  82-2505
Brand:  Kimball Midwest Approved Vendor
Diameter:  1/4"
Material:  Stainless Steel
Measurement Type:  USS
Number of Flutes:  4
Series:  Perma-Thread
Style:  STI
Thread Pitch:  20
Thread Size:  1/4"-20
Thread Type:  Coarse
 

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